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The hill stream of North Zhejiang Grand Canyon

Sponsored by
Educated by Nature

China, Zhe Jiang, Hu Zhou

One hill streams of North Zhejiang Grand Canyon is chosed as the sample of our biotope aquarium. Thousands of North Zhejiang Grand’s hill streams converge into the Huangpu River, and then Flow into the East China Sea.

This freshwater hill stream is the home to Acrossocheilus labiatus, Opsariichthys evolans, Cobitis taenia Linnaeus, Acheilognathus rhombeus and many other fishes.

Submitted by
Liang Wang
Approved by
Fan Li & Zhou Hang
GPS
30.4581203, 119.5137863
Geographical region
Eastern Asia
Drainage Basin
North Zhejiang Grand Canyon
River catchment
Water body type
Hill streams
Water body name
A hill stream of North Zhejiang Grand Canyon
Water body part
Waterfall
Water body course
Headwaters
Water body: tributary of
Tributary name

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Clear water
Water transparency
High
Concentration of sediments
Low
Water temperature
21 °C
Water flow/curent
Slow

Chemical parameters

pH
5.9
Conductivity
GH
3 mg/l
KH
0
Dissolved Oxygen

Substrate in nature

Sand
Grey
Pebble/Gravel
Mixed
Stone
Beige
Stone form
Roundish
Silt/Mud
Brown
Leaves
Few
Driftwood
Few
Submerged terrestrial vegetation
Yes

Aquatic Biotope

Date of collecting
12.07.2020
Collecting area
Side arm
Water depth
0,5m
Air temperature
32 °C
Sunlight
Full sun

Environment

Environment
Affected by human activity
Affected by human activity
Deforestation
Deforestation
Advanced
Surrounding area

The North Zhejiang Grand Canyon is known as the “Qinghai-Tibet Plateau” in Zhejiang Province. It is full of strange peaks and rocks, green ponds and waterfalls, and boundless bamboo sea.

Underwater landscape

After the rainy season, the stones exposed on the water show the white color, while the underwater stones are beige. There were no leaves around the stones, instead there are a great deal of gravel and sands. Due to the waterfull lash the stones, there are a large amount of algae in the water. It caused the hill steam water become blue-green color.

The aquatic vegetation consists mainly of Rabdosia serra, Ludwigia prostrata, Miscanthus floridulus, Blumea balsamifera and many other not identified plants.

Fish:

  • Opsariichthys evolans
  • Acrossocheilus labiatus
  • Sinibotia superciliaris
  • Acheilognathus rhombeus

Aquatic plant:

  • Rabdosia serra
  • Miscanthus floridulus

Wetland plant:

  • Ludwigia prostrata
  • Blumea balsamifera
Threats to ecology

North Zhejiang Grand Canyon is located in a remote area. It can only be reached by car.

North Zhejiang Grand Canyon belongs to country Anji , which is the place with the most bamboo species in the world.

When bamboo resources and tourism are overdeveloped, the ecology of the water is polluted.

In our conversation with the local people, Opsariichthys evolans and Acrossocheilus labiatus were used as their food. But now the number of fish is greatly reduced due to ecological damage. Fortunately, the local forest police have begun to protect the existing ecology. Catching fish is forbided now.

Riparian zone

Trees near the aquatic habitat
Few - Thyrostachys siamensis

Bibliography

  • Chongqing University Press - A research of freshwater fish by Yi Gang
  • ournal of South China Normal University - The research of the comparative of Acrossocheilus labiatus and A.parallens by Zhao Jun
    ISBN CNKI:SUN:HNSF.0.1992-01-005
  • An anlysist on the identify of Ludwigia prostrata by Yang Guangming
    ISBN 0253-2670.1994.12.1994012313
  • China Agricultural University Press - Research on the biological characteristics of Miscanthus floridulus by Xiao Yunfeng

Sitography

→ Baidu – Cobitis taenia
→ Baidu – Acrossocheilus labiatus
→ Baidu – Opsariichthys evolans
→ Baidu – Rabdosia serra
→ Miscanthus floridulus

Comment by the expert

Fan Li: The observation and study on the species in habitat was not so accurate, e.g. Acheilognathus rhombeus can not live in upper stream habitat.